Twilio incident: SMS Delivery Failures from Twilio to KDDI Japan

Affected components

• SMS, APAC

1. resolvedNov 2, 2026, 00:37 UTC

   The incident has been resolved and SMS delivery from Twilio to KDDI network subscribers in Japan is operating normally.

2. monitoringNov 1, 2026, 22:34 UTC

   We have observed a recovery in SMS delivery from Twilio to KDDI network subscribers in Japan and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

3. identifiedNov 1, 2026, 21:37 UTC

   Twilio customers may be experiencing SMS delivery failures from Twilio to KDDI network subscribers in Japan. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

4. identifiedNov 1, 2026, 20:37 UTC

   Twilio customers may be experiencing SMS delivery failures from Twilio to KDDI network subscribers in Japan. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

5. investigatingNov 1, 2026, 20:30 UTC

   Twilio customers may be experiencing SMS delivery failures from Twilio to KDDI network subscribers in Japan. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Twilio's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Grafana Cloud: IRM Unable to Voice Call Brazil NumbersMajor · Nov 2, 2026, 00:36 UTC
• Akamai: Edge Delivery issues between Indonesia and SingaporeMinor · Oct 25, 2026, 13:44 UTC
• Linode: Connectivity Issue between ID-CGK (Jakarta) and SG-SIN-2 (Singapore 2)Minor · Oct 25, 2026, 13:54 UTC
• SendGrid: Voice Call Failures from Twilio Phone Numbers to Digi Mobil RomaniaMinor · Oct 26, 2026, 13:09 UTC
• SendGrid: Voice Call Failures From Twilio Phone Numbers to GermanyMinor · Oct 27, 2026, 09:00 UTC
• SendGrid: MMS Delivery Delays from a Subset of Twilio Long Codes to C-Spire United StatesMinor · Oct 27, 2026, 21:31 UTC
• SendGrid: Silent Network Authentication (SNA) Failure Increase on Indosat in IndonesiaMinor · Oct 28, 2026, 12:14 UTC
• Linode: Service Issue - US-Southeast (Atlanta)Minor · Oct 31, 2026, 17:49 UTC
• Shippo: UPS Service DegradationMinor · Nov 1, 2026, 16:32 UTC
• Fly.io: Outbound IPv4 connectivity failures in ARN, JNB, and GRUMinor · Nov 1, 2026, 18:50 UTC

How often does Twilio have incidents?

Twilio reported 498 incidents in the last 90 days, 1 of them major or critical. A typical incident lasted 6h 9m. See Twilio's uptime and incident history